European Journal of Public Health, Vol. 23, No. 5, 722 The Author 2013. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved. doi:10.1093/eurpub/ckt102 Advance Access published on 18 July 2013 . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. ....

In this paper we present an efficient coding method for the upper band(4-7kHz) of wideband(0.5-7kHz) speech coding based on a band-split approach. Due to the impulselike characteristics in upper band signal, it is very difficult to efficiently quantize the signal at low bit-rate when we use transform coding techniques. We propose two temporal normalization techniques, direct temporal energy nor...

This study evaluates video codec performance over VoIP using a campus wireless network. Today, the deployment of VoIP occurs in various platforms, including VoIP over LAN, VoIP over WAN and VoIP over VPN. Therefore, this study defines which video codec provides good video quality over VoIP transmission. The soft phone is used as a medium for communication between two parties. A network manageme...

HIV testing uptake at 3 antenatal clinics in Johannesburg was 53% (1 333/2 502) during 4 months when lay counsellors were unpaid, which was lower than the 7 months when payment was provided (79%; 3 705/4 722; p<0.001), and a subsequent 12-month period (86%, 11 877/13 767; p<0.001) when counsellors were paid. Consistent remuneration of lay counsellors could markedly improve services for preventi...

Yong-Hoon Kim,1,* Jamil Tahir-Kheli,2 Peter A. Schultz,3 and William A. Goddard III2,† 1Korea Institute for Advanced Study, 207-43 Cheongnyangni 2-dong, Dongdaemun-gu, Seoul, 130-722 Korea 2Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125-7400, USA 3Multiscale Computational Materials Methods Department, Sandia National Laboratories, Albuque...

Kun Woo Kim,1 Roger S. K. Mong,2,3 Marcel Franz,4 and Gil Refael2 1School of Physics, Korea Institute for Advanced Study, Seoul 130-722, Korea 2Department of Physics and Institute of Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA 3Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA 4Department of...